Charging control unit



FIG. 1 is an upper left front perspective view of a charging control unit, showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view therof; and,

FIG. 7 is a bottom view thereof. 

CLAIM The ornamental design for a charging control unit, as shown and described. 